Water pump



FIG. 1 is a front elevation view of a water pump according to a first embodiment of our new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is a front elevation view of a water pump according to a second embodiment of our new design;

FIG. 9 is a rear elevation view thereof;

FIG. 10 is a right side elevation view thereof;

FIG. 11 is a left side elevation view thereof;

FIG. 12 is a top plan view thereof;

FIG. 13 is a bottom plan view thereof; and,

FIG. 14 is a perspective view thereof. 

The ornamental design for a water pump, as shown and described. 